Oil pump



Patented Nov. 16, 1926.

UNITED STATES retina PATENT eEFcE.

BLAKE c. DALE, or KAW CITY, OKLAHOMA.

oiL PUMP.

Application led November 13, 1925. Serial No. 68.818.

v requires considerable time and can only be accomplished with the expenditure of considerable elfort and money.

It is therefore one of the chief charac;

teristics of the kpresent invention to provide a novel -construction of means for preventing sand .from falling down into the working barrel of the pump, .while the latter is in operation, but more particularly while the pump is being used, the invention providing a chamber in whichV saidsand is collected, thereby eliminating the trouble, loss of time and expense occasioned by the presenceV of sand about the working valve.

vAnother object of the invention resides in providing the working valve` with a rod depending therefrom and utilized to space the working valve from the standing valve when the working valve reaches the limit of its downward stroke, and also utilized to strike the standing ,valve to maintain the valve proper free from any bindingjeffect of whatever sand may accumulate about the standing valve, thereby insuring a proper and efiic-ient operation of the latter. Other objects and advantages will appear when the following detailed description is read in connection with the accompanying drawing, the invention residing in the construction, combination and arrangement of parts as claimed.

In the drawing forming part of this application, like numerals of reference indicate similarl parts throughout the several views, and wherein: f

Figure 1 is a vertical sectional View through the pump. t

Figure 2 is a sectionalview 2-2 of Figure 1. A l

Figure 3 is a sectional view on line 3 3 of Figure 1.

Figure 4 is a of-Figure 1.

The working barrel of the pump is made up in sect-ions 10 which may vary in length on the line sectional' view on line 4-4 without departing from the spirit of the invention, the adjacent ends of the respective sections being connected together by a coupling sleeve 11, as clearly shown in Figure 1. This sleeve is formed with an internal fiange 12 engaged by the adjacent ends of thes'ections 10 of said barrel, said sections being threaded into the sleeve as illustrated.v The lower section 10 is coupled in any suitable manner as at 13 to an anchor 14 adapted .to be arranged on the bottom-of the well, and arranged in the lower section 1() of the working barrel is a standing valve 15 of well known construction. It will be noted upon inspection of Figure 2 that the standing valve includes a cage 16 in which the valve proper 17 operates, thelatter being normally seated as shownin Figure 1. The sectionlO of the working barrel is cut away Aupon opposite sides thereof as illustrated in Figure2 to provide large openingsat opposite sides of the barrel and the material remaining between the cut away portion forms suitable connecting arms 10, as illustrated. During the pumping operation the fluid is drawn through the standing valve and due to the cutaway portions of the working barrel willfhave a tendency to readily pass the valve member, and enter the barrel again at the upper lend of the valve member 16 andthe sand or other heavy material will drop downward around the surface of the ball 17 and be deflected into the space between the outer casing and the working barrel Vand thus being prevented from accumulating around the ball. It will be noted that the sand will thus fall into the space 18- provided therefor between the working barrel and the adjacent section 19 of theouter casing. Attention is directed to the'fact that the space 18 is preferablyV deep enough to permitpthe sand to drop down a considerable distance from the ball valve 17 so that suction will not again draw the sand upward. This section 19 isthreaded or otherwise suitablysecured tothe anchor 14 above referred to and may be of any desired length. The outer casing is made upof a number of sections which may varyin length, the section-20 shown in the drawing being threaded onto the coupling sleeve 11 at it-s lower end and also threaded toa suitable coupling 21 at the upper end thereof. The adjacent ends of the sections 19 and 2O of the outer casing Vengage an outer flange 22 formed on the coupling sleeve 11, and the space between this section 2O of the outer casing and the adjacent section of the working barrel defines a sand collecting chamber' or compartment indi- 'ated at 23.

Surrounding the upper end of the working barrel is a spacing ring` 2st from which projects lugs contacting the adjacent coun pling' 21, and thus providing a passage through which the sand is allowed to enter the chamber or compartment 23 above men tionerl.

Operating within the working barrel is a working valve of usual construction including the leather cups indicated at 26, the valve proper being indicated at 27 and operating within a. cage 28. The valve rod is indicated at 29 and passes upwardly through the working barrel as shown in Figure 1. In accordance with the present invention I contemplate the use of a normally seated valve of any type orV construction for closing the upper end of the working barrel, and'thus prevent sand or the like from falling back down into the working barrel under any and all circumstances, but more especially when the pump is not in use. The preferred embodiment of this inventive idea is illustrated in the drawing, wherein the valve is indicated at 30 and is of substantially conical formation to direct the sand into the collecting chamber or compartment 23 through the spaces between the lugs 25 carried by the spacing ring 24, when, of course, the valve is seated. to prevent this sand from entering the working barrel. -he valve is of suficient weight to normally repose upon the upper end of the working barrel when the valve rod is moved downwardly, but this valve is free to slide on said rod, not only to automatically seat itself under the conditions just mentioned, but to permit the valve to be elevated off its seat when the pump rod 29 reaches the limit of its upward stroke or substantially so. Various means may be employed for opening the valve at this time, but I preferably make use of a collar 31 which is fixed to the rod 29 at an appropriate point in its length, so that when the rod and working` valve are elevated, the collar B1 strikes the valve 30, thereby lifting the latter from its sea-t to allow the oil or other fluid to pass from the working barrel in the usual mannen .lust as soon as the collar 31 is moved away from the valve 30 the latter under its own weight slides downwardly on the rod to automatically reseat itself to positively prohibit sand from finding its way into the working valve to the detriment of the working valve including` the leather cups 26.

The valve Amember 30 is not only utilized for closingl the upper' end of the workingbarrel as heretofore specilied,but is particularly adapted for what is known in the field as floating. The rods and valves 26 to gether with the rods 29 are of considerable weight and when being lowered into the casing of an oil well or the like have to be handled carefully to preventtoo rapid descent and consequent danger of rod breakage. In the latter event, the lower end of the rods or string is separated from the upper and in addition to causing considerable damage to the casing, requires an unusual amount of labor in an attempt to clear the well by fishing out the valves.

It will be noted that the lower face of the valve member is flat and presents a resisting surface to the fluid as the valve and its associated parts are lowered into the well. The upper or smaller end of the valve rests against one of the coupling blocks illustrated at the Vtop of Figure 1, so that the valve Vwill be floated into the well. The valve and the rod parts connected thereto. will not be permitted to descend into the casing at a dangerous rate of speed and thus eliminate danger of parting.

It frequently happens that an appreciable amount of sand accumulates about the standing valve 17, causing the latter to bind or stick, and thereby interfere with a proper and eiicient operation of the pump. While the adjacent section 10 of the working barrel is cut away in the mann-er above described to allow the major portion of this sand to escape from around the valve into the outer casing of the pump, I also contemplate the use of means for maintaining the working valve 17 free for movement within its cage under such circumstances. This means preferably consists of a rod 32 which is threaded or otherwise suitably secured to the working valve structure, depending therefrom to strike the cage 16 of thestanding valve each and every time the working valve reaches the limit ofits downward stroke, this striking or pounding of the cage 16 keeping the valve 17 loose or free to operate in an efficient manner. In addition to this the rod 32 is utilized to space the working valve a proper distance from the standing valve, preventing Vthe working valve structure from passing beneath the lower end of the particular section of the working barrel in which the valve operates. In other words, the rod 32r prevents the leather cups of the working valve structure from passing through the coupling sleeve 11, at which point they would be interfered with by the spaced ends of the barrel sections.

Iflhile it is believed that from the foregoing description the nature and advantages of the invention will be readily apparent, I desire to have it understood that I do not limit myself to what is herein shown and described, and that such changes Vmay be made when desired as fall within the scope of what is claimed.

Having thus described the invention,y

sand collecting chamber, a working Valve,

a'vaive rod connected therewith, a conical shaped valve slidable upon said rod with the base of the Valve disposed downwardly whereby to provide a iuid resisting surface, and spaced stops upon the Valve rod to limit the movement of the conical Valve in either direction.

In testimony whereof I affix my signature.

BLAKE c. DALE. 

